Car-truck.



No. 694,473. Patented Mar'. 4, I902.

J. F. HOBBS.

CARTRUGK.

' (Application filed Sept. 13. 1901. (No llloqal.) 2 Sheets-Shut l.

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No. 694,473. Patented Mar. 4, 1902.

J. 'F. HOBBS.

cAn muc (Application filed Sept. 13, 1901.)

(No Model.) 2 Sheets-Sheet 2.

WITNESSES.

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UNITED STATES PATENT OFFICE.

JENNIE F. HOBBS, OF BRIDGEPOR'I, CONNECTICUT.

CAR-TRUCK.

SPECIFICATION forming part of Letters Iiatent No. 694,473, dated March4, 1902. Application filed September 13, 1961. Serial No. 75,276. (Nomodel.)

To all whom it may concern:

Be itknown that LJENNIE F. HOBBS, a citizen of the United States, and aresident of Bridgeport, in the county of Fairfield and State ofConnecticut, have invented certain new and usefullmprovenlentsinCar-Trucks,

,of which the following is a specification.

My invention relates to an improvement in car-trucks; and it consistsin' certain details of construction, to be more fully set forth in thefollowing specification.

To enable others to understand my invention, reference is had to theaccompanyingdrawings, in which* I,

Figure 1 represents an upper plan view of the truck with two oftheantifriction-roll housings uncovered; Fig. 2, a side elevation lookingin the direction of arrow at of Fig. 1, also vertical section of one ofthe antifriction-roll housings. Fig. 3 isan end elevation through line bb of Fig. 1. Fig. 4 is a section of the truck through line 0 c'ofFig. 1,showing the car-elevating screw raised against a dotted linerepresenting the lower edge of a car. Fig. 5 is a detail side elevationof one of the car-wheels with its removable axles therein.

Its construction and operation are as follows:

The side frames have the double walls 1, 2, 3, and 4, and between themare located the car-wheels 5, 6, 7, and 8. These wheels are removablysecured to the short axles 9, 10, 11, and 12, which axles are journaledin the boxes 13. (Shown at Figs. 2 and 3.)

14, 15, 16, 17, 18, 19, 20, and 21 are. housings attached to the sideframes, and within them are located the antifriction-wheels 22, adaptedto run against the upper surface of the car-axles, one on each side ofeach of the car-wheels. As each antifriction wheel is alike, the samefigure of reference will answer for all. Each of said wheels is rigidlymounted on the short axle 23, journaled in the side frames of the truckand in the housings. These wheels also serve to convey the oil from theboxes 24, (see particularly Fig. 2,) through the hole 25, to the axlesof the car-Wheels, against which, as before mentioned, the wheels 22run. These wheels serve to convey the oil in small quantities onto thecaraxles, and from thence it will work into the portion of the cated.

26 are sliding covers for the oil-boxes 24. 27 is a depressiblecross-piece suspended on springs 29, 3O, 31, and 32. Two of thesespringsviz., 28 and 32-rest on the crossbars 33 and 34, which bars aresupported on the side frames of the truck. The other springs rest on thelower cross-piece 35, also supported in said side frames, and theextension-pieces 1 and 3, Fig. 4. The body of the car is adapted to reston the cross-piece 27, and the springs serve to keep the car level whenpassing around a curve or where the track is uneven. 36 is anelevating-screw adapted to operate in a threaded hole in the projection37 of thelower cross-piece 35. This screw is adaptaxle in said boxeswell lubried to raisethe car off the track for the purpose to behereinafter more full described.

1 The axles of the car-wheels are adapted to be removed whenever itbecomes necessary -9, so that it is only necessary to drive the axlebackfar enough to disengage this central portion, when the remainder ofthe axle can be slipped back andthe wheel lifted out and replaced byanother without running the car to the repair-shop. It will, however, beunderstood that the first step in the operation of putting in a newwheel is to elevate the end of the car over the truck needing repairs.

The' dotted line 39 represents, as before stated, the lower edge of theend of a car partly raised by the elevating-screw.

39 is a recess in the lower edge of the car and is deeper than thethickness of the head of the said bolt, so that when the car rests onthe cross-piece 27 it will give with the springs under said cross-piecewithout engaging with the head of the elevating-screw. The end is liftedsufficient to allow a wheel to be lifted up between the side frames andover the top of the same.

40 are removable plates that prevent accidental end play of thecar-axles.

To further assist in maintaining the equilibrium when rounding curves orpassing over an uneven track, the side frames are joined at their endsby the bars 41 and 42. Blocks 43 are rigidly secured to said sideframes, while the bolts 44 enable the truck to rock sidewise independentof the end bars. The short car-axles also enable the car to turn sharpcurves much better than the present construction,where both wheels aresecured to the same axles. It will also be observed that (see Fig. 2)the top of the housings inclosing the antifriction or oiling wheels areremovable in case it should become necessary to get at the interior.

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is-

1. The combination, in a car-truck of the character described, of theside frames 1, 2, 3and 4:, independent car-wheels having short axleslocated between said frames and journaled therein, antifriction-wheelsadapted to run on said axles, housings embracing saidantifriotion-wheels, housings inclosing each of said wheels, anoverlying oil-receptacle on each housing, means whereby the oil iscommunicated to said wheels and transmitted by them to the axles of thecar-wheels, for the purpose set forth.

2. The combination, in a car-truck, of the character described, ofparallel side frames, independent car-wheels having short axles withinsaid frames, removable means to pre: vent end movement of said axles,said axles adapted to be removed and the wheels lifted out of saidframes, means for elevating the car preparatory to such removal, for thepurpose set forth.

3. The combination, in a car-truck, of the character described, with theside frames, of a depressible cross-piece to support the car, a secondcross-piece below the first, springs interposed between the twocross-bars pivotally supported to the ends of the side frames, wherebythe equilibrium of the car is maintained under all circumstances, forthe purpose set forth. 4. The combination, in a car-truck, of thecharacterdescribed,of the parallel'side frames, independent car-wheelshaving removable axles,an upper depressible cross-piece adapted tosupport a car-body, combined with a lower cross-piece, interposin gsprings, an elevatingscrew adapted for raising one end of the car forthe purpose of removing a wheel and replacing the same, cross-barspivotally supported to the ends of said side frames so that, incombination with said springs, the equilibrium of the car is maintained,for the purpose set forth.

Signed at Bridgeport, in the county of Fairfield and State ofConnecticut, this 12th day of September, A. D. 1001.

JENNIE F. HOBBS.

Witnesses:

W. U. SEELEY, E. M. JACKSON.

